Sensitivity of soil respiration and microbial communities to altered snowfall

► Respiration sensitivity to moisture was enhanced under ambient and reduced snowfall. ► Soil respiration was only sensitive to temperature under snowpack addition. ► A non-linear relationship between temperature and moisture co-regulated respiration. ► Microbial communities responded to snowpack variation and may influence respiration. ► However, these microbial effects were “reset” by spring thaw.